Windows

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Migrate to Exchange 2003

Assuming everything is good to go with Active Directory.Have an Exchange 5.5 box called Exchserver. Has a invalid site name for Exch 2k3. Creating a new server EXCH2K3 on a new site. Will install it and copy over the mail from EXCHSERVER using the migration utility. Disconnect EXCHSERVER and create another Exch 2003 server called EXCHSERVER. Check DNS, make sure everything is ok. When a client signs on, will it just talk to the new EXCHSERVER, which will redirect the client to EXCH2K3? Should I consider bringing up the new EXCHSERVER as 5.5 in the same site as 2003? Is this a good option?

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It is never a good idea to label your mail servers Exchange or mail sever. Find a more unquine name not related to its function. Your migration process is correct however, completly install and test the new Exchange 2003 server send and recieve mail with just your emial address when up and running. Make you have your DNS updated with two MX records. First priority to old 5.5 server and second the new 2003. Once you have you 2003 server functional. (you can send, recieve, and you have a proper anti-shield protecting the server. You can migrate to new server and remove old 5.5 completly. There is know need to keep 5.5 around, because 2003 will handle your work load fine. Make sure to have your ISP hold your mail while you make your trasfer. Also there in no need you return back to your own mail server name EXCHSERVER (for one it's a bad choice and secondly DNS doesn't cache mailserver which is why it uses MX records to forward names. So once you have your 2003 server up and running you contact your ISP and switch the MX record and wham-o your new mail server is up and running so make you test the functionality and you should be golden.

troydroberts answer is a good one BUT, you mention everything good to go with Active Directory meaning that you have Windows 2003/2000 server running with DNS [which is probably why have an invalid site name for your exchange server 5.5 because with W2K/2003 AD , you had to create a domain name which is different than the domain name that Exchange 5.5 uses. If you want to migrate user mailboxes on your exchange 5.5 over to EX2003 you can use exmerge [requires service pack 3]. Article 328741 on Microsoft Technet help and support describes the process of merging exchange 5.5 to E2K/EX2003. here's a link that may or may not work due to how it's displayed here . http://support.microsoft.com/default.aspx?scid=kb;en-us;328741

I used the Exchange 2003 migration tool and copied all email exactly as I said above. THen redid a new computer with the old servers name, all clients connected perfectly. only issue was offline ost's.

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